The Adjustable Mattress Brand We *Actually* Recommend Is Up to 40% Off Right Now

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Modern bedroom featuring a gray adjustable mattress, white sofa with dark cushions, and wooden furniture.
Credit: Sleep Number

Since the bed-in-a-box revolution took place more than a decade ago, new mattresses have been popping up faster than we can keep track. But one classic brand that’s held strong through the frenzy is Sleep Number. Its claim to fame is the ability to adjust firmness on either side of the mattress, accommodating couples with different sleeping preferences. “I’m a cool sleeper who prefers a softer mattress, but my husband is a hot sleeper who needs something firmer,” Apartment Therapy shopping writer Megan Gray said in her recent Sleep Number review. “The ability for each of us to independently set our ideal firmness is fantastic.”

Interested in trying one out for yourself? At Sleep Number’s Last Chance Sale, select mattresses are up to 40% off, and bedding accessories like sheets and pillows are up to 50% off. Each of the mattresses shown below have manual adjustable firmness, Responsive Air technology that automatically adjusts your side of the bed as you shift during the night, and compatibility with a smartphone app that tracks your sleep quality, or SleepIQ score. And don’t forget to check out its feature-packed upholstered headboards, too.

i8 Mattress
$3,999$2,399

This Sleep Number cooling mattress is at its lowest price ever right now. Infused with ceramic gel for temperature regulation, the 12-inch mattress has supportive layers that conform to your body and plush layers that relieve pressure points. “Two years with the i8 mattress and I'm so impressed,” customer Jen C. wrote in a review. “I love the automatic adjustment, it helps the mattress retain shape during the night to keep the body aligned.”

$2,399 at Sleep Number
p5 Mattress
$2,699$1,889

This is Sleep Number’s softest mattress, with more plush layers than supportive ones. If pressure relief is your biggest concern when it comes to a good night’s sleep, this may be the bed for you. Lots of shoppers mention in reviews that they’re repeat customers of the P5.

$1,889 at Sleep Number
c4 Mattress
$1,899$1,329

The Sleep Number C4 is a firm mattress topped with a breathable comfort layer and infused with cooling ceramic gel. Compared to the i8, it’s more supportive, but it has fewer layers and less cooling gel — but it’s also $1,000 less, too. Customers with scoliosis, musculoskeletal issues, herniated discs, recent surgeries, and more health conditions praise its firm comfort in their reviews.

$1,329 at Sleep Number
ClimateCool
$5,749$5,174

Hot sleepers, stop scrolling! Sleep Number’s Climate Cool mattress gets its icy feel with as much ceramic gel as the i8, plus adjustable cooling settings you can control in the app. “I sleep hot and am constantly taking the covers off in the middle of the night,” customer Laura wrote in a review. “Now I set the cooling to run when I am sleeping and wake up restful. No more tossing the blankets off, rolling around tirelessly because I can't keep cool.”

$5,174 at Sleep Number
Diamond Tufted Upholstered Bed
$3,500$2,800

Sleep Number’s innovative bed frames are reason enough to get a mattress from the brand. Each side has a slot for the mattress’s remote control, a reading light, and Bluetooth speakers, and ambient light on the back of the headboard helps to wake you gently, similar to a sunrise alarm clock. Select from four upholstery options to match your current bedroom setup.

$2,800 at Sleep Number
Winter Soft Sheet Set
$120$60

If you’re buying a Sleep Number bed at this sale, consider throwing it a set of sheets as well. These ultra-soft sheets are designed to flex with the brand’s unique beds and stay secure as you change positions. “I bought a set of these sheets many years ago. They wear well, stay on the bed, and are the softest, warmest sheets I have ever tried,” shopper Pamela P. commented.

$60 at Sleep Number
PlushComfort Pillow
$50$25

This Sleep Number pillow has the best discount of any item in this sale and is just $25 while supplies last. The down alternative pillow has a microfiber fill and a brushed cotton cover, and the brand recommends this Classic shape for stomach and back sleepers. Toss it in the wash and fluff it back up when it needs a refresh.

$25 at Sleep Number
DualTemp Layer Mattress
$1,099$880

Not looking for a whole new mattress, but still need a better night’s sleep? The DualTemp Layer can fit on top of any mattress brand and has a remote control to adjust its heating and cooling settings. Covering just one side of the bed, it’s available in half-queen, half-king, and half-California king sizes. “I’ve always been a ‘furnace’ while sleeping and this DualTemp Layer is a game changer,” said customer Rnmthrof2. “I sleep much more comfortably with fewer bed exits and less restlessness.”

$880 at Sleep Number

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